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| author | Wen Gong <quic_wgong@quicinc.com> | 2023-10-10 10:27:21 +0300 |
|---|---|---|
| committer | Kalle Valo <quic_kvalo@quicinc.com> | 2023-10-12 19:06:29 +0300 |
| commit | c42c2b8224c40f91f5f4984cc721d33ab10c7d43 (patch) | |
| tree | c264eb96e5c481b82b64fae2cbe317d179cfb6d2 | |
| parent | 92448f8718baf8a8a940c210f04d0787a52e7507 (diff) | |
| download | linux-stable-c42c2b8224c40f91f5f4984cc721d33ab10c7d43.tar.gz linux-stable-c42c2b8224c40f91f5f4984cc721d33ab10c7d43.tar.bz2 linux-stable-c42c2b8224c40f91f5f4984cc721d33ab10c7d43.zip | |
wifi: ath12k: fix invalid m3 buffer address
This is to fix m3 buffer reuse issue as m3_mem->size isn't set to
zero in the free function, which leads invalid m3 downloading to
firmware and firmware crashing.
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0-03427-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.15378.4
Signed-off-by: Wen Gong <quic_wgong@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230721055305.20420-4-quic_wgong@quicinc.com
| -rw-r--r-- | drivers/net/wireless/ath/ath12k/qmi.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath12k/qmi.c b/drivers/net/wireless/ath/ath12k/qmi.c index b00d74724aa9..f6e949c618d0 100644 --- a/drivers/net/wireless/ath/ath12k/qmi.c +++ b/drivers/net/wireless/ath/ath12k/qmi.c @@ -2540,6 +2540,7 @@ static void ath12k_qmi_m3_free(struct ath12k_base *ab) dma_free_coherent(ab->dev, m3_mem->size, m3_mem->vaddr, m3_mem->paddr); m3_mem->vaddr = NULL; + m3_mem->size = 0; } static int ath12k_qmi_wlanfw_m3_info_send(struct ath12k_base *ab) |